Can anyone help me restore my Kindle 3 wifi.
The study of the device led to its failure, deleted partition mmcblk0. Now I was able to export mmc0 in recovery mode. But I need a copy of the file system, of course without any directories with the personal files: /mnt/us, /mnt-base and /opt/amazon/ebook/config/reginfo.

I tried to get to the rootfs, but I can't see the Kindle on the PC when I'm in the Recovery menu. When entering "Export to USB" (press u in the developer menu), I just can see the ordinary folders, no real file system. I think that just fat32 partition is mounted. How can I mount all partitions in Linux? Do i have to initialize the partitions first?

@scenox
To export the entire mmс0 you need to connect the device via RS232, and then when you start select the menu item 3 "export mmc0". But for this will require a password, which is always "fionaXXXX", where XXXX is computed by the device serial number.

I can calculate this password for the device serial number using a debugger.